Home / 120,820.41-166,734.45-67,110.39

Finding the Fourth Proportional to 120,820.41, 166,734.45 and 67,110.39

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Solution

The fourth proportional to 120,820.41, 166,734.45 and 67,110.39 is: 92,613.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,820.41 : 166,734.45 = 67,110.39 : x
  2. Step 2: Convert to fraction form
    120,820.41/166,734.45 = 67,110.39/x
  3. Step 3: Cross multiply
    120,820.41x = 166,734.45 × 67,110.39
  4. Step 4: Simplify right side
    120,820.41x = 11,189,613,965.94
  5. Step 5: Solve for x
    x = 11,189,613,965.94/120,820.41
  6. Step 6: Final answer
    x = 92,613.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.